參數(shù)資料
型號(hào): LTC4240IGN#TRPBF
廠商: Linear Technology
文件頁(yè)數(shù): 3/28頁(yè)
文件大?。?/td> 493K
描述: IC CTRLR HOTSWAP CPCI I2C 28SSOP
標(biāo)準(zhǔn)包裝: 2,500
類型: 熱交換控制器
應(yīng)用: CompactPCI?
內(nèi)部開關(guān):
電源電壓: 3.3V,5V,±12V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 28-SSOP(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 28-SSOP
包裝: 帶卷 (TR)
LTC4240
3
4240f
The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
 = 25?/SPAN>C. 12V
IN
= 12V, V
EEIN
 = 12V, V
3VIN
 = 3.3V, V
5VIN
 = 5V unless otherwise noted.
ELECTRICAL CHARACTERISTICS
5V
IN
  0.4
SYMBOL   PARAMETER
CONDITIONS
MIN
TYP
MAX    UNITS
V
12V
12V Switch Voltage Drop
V
12V
 = (V
12VIN
  V
12VOUT
), I = 500mA
q
300
600
mV
V
VEE
V
EE
 Switch Voltage Drop
V
VEE
 = (V
EEOUT
  V
EEIN
), I = 100mA
q
125
250
mV
I
CL
Current Foldback
12V
IN
 = 12V, 12V
OUT
 = 0V
q
50
350    800
mA
V
EEIN
 = 12V, V
EEOUT
 = 0V
q
50
250
350
mA
I
TH
Current Fault Threshold
12V
IN
 = 12V
q    550
1250   1900
mA
V
EEIN
 = 12V
q
225
500
800
mA
T
TS
Thermal Shutdown Temperature
Note 4
150
V
TH
Power Good Threshold Voltage
12V
OUT
q    10.8
11.1
11.4
V
5V
OUT
q    4.50
4.65
4.75
V
3V
OUT
q
2.8
2.9
3.0
V
V
EEOUT
q
10
10.5   10.8
V
V
IL
Input Low Voltage
OFF/ON, RESETIN, SCL, SDA, PRSNT1#, PRSNT2#
q
0.8
V
V
IH
Input High Voltage
OFF/ON, RESETIN, SCL, SDA, PRSNT1#, PRSNT2#
q
2
V
I
IN
Input Current PRSNT1#, PRSNT2#,
OFF/ON = RESETIN = SDA = SCL = 0V, 5V,
q
?.08
?
礎(chǔ)
OFF/ON, RESETIN, SDA, SCL
PRSNT1#, PRSNT2# = 0V, 5V
q
?.08
?
礎(chǔ)
RESETOUT, FAULT Leakage Current
RESETOUT = FAULT = 12V, OFF/ON = 0V, RESETIN = 3.3V
q
?.08
?
礎(chǔ)
PWRGD Leakage Current
PWRGD = 12V, OFF/ON = 4V
q
?.08
?
礎(chǔ)
5V
SENSE
 Input Current
5V
SENSE
 = 5V, 5V
OUT
 = 0V, GATE = 0V
q
55
100
礎(chǔ)
3V
SENSE
 Input Current
3V
SENSE
 = 3.3V, 3V
OUT
 = 0V, GATE = 0V
q
55
100
礎(chǔ)
5V
IN
 Input Current
5V
IN
 = 5V, TIMER = 0V, OFF/ON = 0V
q
0.8
1.5
mA
3V
IN
 Input Current
3V
IN
 = 3.3V, TIMER = Open
q
250
600
礎(chǔ)
3V
IN
 = 3.3V, TIMER = 0V
q
250
500
礎(chǔ)
5V
OUT
 Input Current
5V
OUT
 = 5V, OFF/ON = 0V, TIMER = 0V, GATE = 0V
q
237
400
礎(chǔ)
3V
OUT
 Input Current
3V
OUT
 = 3.3V, OFF/ON = 0V, TIMER = 0V, GATE = 0V
q
120
200
礎(chǔ)
V
EEIN
 Input Current
TIMER = 0V, OFF/ON = 0V
q
950   1200
礎(chǔ)
Precharge Input Current
V
PRECHARGE
 = 1V
q
10
礎(chǔ)
ADDRIN
ADDRIN = 0V, 5V
q
?.1
礎(chǔ)
I
TIMER
TIMER Pin Current
OFF/ON = 0V, TIMER = 0V
q
6
11.5    17
礎(chǔ)
TIMER = 5V, OFF/ON = 2V
q
15
28
55
mA
V
TIMER
TIMER Threshold Voltages
q
5
5.5
6.5
V
R
DIS
12V
OUT
 Discharge Impedance
q
430
1000
&
5V
OUT
 Discharge Impedance
q
50
100
&
3V
OUT
 Discharge Impedance
q
150
300
&
V
EEOUT
 Discharge Impedance
q
650
1000
&
V
OH
CMOS Output High Voltage
BE, I = 100礎(chǔ)
q
V
V
OL
CMOS Output Low Voltage
BE, I = 100礎(chǔ)
q
0.4
V
Output Low Voltage
PWRGD, RESETOUT, FAULT, SDA(I = 3mA)
q
0.4
V
Output Low Voltage
LED (I = 10mA)
q
0.8
V
V
PXG
PRECHARGE Reference Voltage
V
5VIN
 = 5V
q
0.9
1
1.1
V
I
2
C Timing (Note 4)
f
SCL
SCL Clock Frequency
100
kHz
t
SUSTA
Start Condition Setup Time
4.7
t
BUF
Bus Free Time Between Stop and Start
4.7
t
HDSTA
Start Condition Hold Time
4
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